Hello Vatsal,
I am afraid that I too was unable to recover your model. The error message indicates that there is too much file data corruption to ignore. You indicated that you had already searched the AKN for help and here is the main AKN Article I am sure that you have already seen that describes the issue.
I am glad that you have a working older copy that you can work from. I suggest that you run audit and resolve any errors that might exist in that file as well.
Please select the Accept as Solution button if my post solves your issue or answers your question.
John Vellek
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